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#1
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Huble in the hand?
Let's find out! 125x zoom, 3000mm/f https://www.youtube.com/watch?v=e0mnN7ODD4U https://www.youtube.com/watch?v=xC7Ez5CGLOs |
#2
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On Wednesday, 5 September 2018 04:32:01 UTC-4, StarDust wrote:
Huble in the hand? Let's find out! 125x zoom, 3000mm/f https://www.youtube.com/watch?v=e0mnN7ODD4U https://www.youtube.com/watch?v=xC7Ez5CGLOs Junk. |
#3
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On Wednesday, September 5, 2018 at 5:38:20 PM UTC-7, RichA wrote:
On Wednesday, 5 September 2018 04:32:01 UTC-4, StarDust wrote: Huble in the hand? Let's find out! 125x zoom, 3000mm/f https://www.youtube.com/watch?v=e0mnN7ODD4U https://www.youtube.com/watch?v=xC7Ez5CGLOs Junk. $1000 junk? Ouch! |
#4
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On 06/09/2018 01:38, RichA wrote:
On Wednesday, 5 September 2018 04:32:01 UTC-4, StarDust wrote: Huble in the hand? Let's find out! 125x zoom, 3000mm/f https://www.youtube.com/watch?v=e0mnN7ODD4U https://www.youtube.com/watch?v=xC7Ez5CGLOs Junk. It is pretty impressive for a camera lens with that zoom factor to get even remotely close to diffraction limited at the long end. There was a time when they struggled to do 3x zooms reliably not all that long ago. -- Regards, Martin Brown |
#5
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On Thursday, September 6, 2018 at 8:37:49 AM UTC+1, Martin Brown wrote:
On 06/09/2018 01:38, RichA wrote: On Wednesday, 5 September 2018 04:32:01 UTC-4, StarDust wrote: Huble in the hand? Let's find out! 125x zoom, 3000mm/f https://www.youtube.com/watch?v=e0mnN7ODD4U https://www.youtube.com/watch?v=xC7Ez5CGLOs Junk. It is pretty impressive for a camera lens with that zoom factor to get even remotely close to diffraction limited at the long end. There was a time when they struggled to do 3x zooms reliably not all that long ago. -- Regards, Martin Brown If only the world knew the way you hapless mathematicians think so your 3X brought to mind the book by the English mathematician who poked fun at exotic speculation that eventually showed up as Alice shrinking and expanding - https://www.newscientist.com/article...ved/?full=true The idea of 3D+1 applied to the celestial arena is fantasy and the fact that I can easily deconstruct the intrusion of mathematicians into astronomy via their concepts of time (really timekeeping) and complete perspective failure is meant to bring not only astronomy back to the population of this planet but also to return mathematics to a proper role. It may not be true in terms of the fictional book as a reaction to mathematicians but the evolution of mathematics in 20th terms of time and space as distinct from the terms Newton originally applied, falsely as it turns out, demonstrate why it is now all too much with nothing but non visible voodoo coming from your and your hapless colleagues. Strange people who became dominant but that time is ending. |
#6
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On Thursday, 6 September 2018 03:37:49 UTC-4, Martin Brown wrote:
On 06/09/2018 01:38, RichA wrote: On Wednesday, 5 September 2018 04:32:01 UTC-4, StarDust wrote: Huble in the hand? Let's find out! 125x zoom, 3000mm/f https://www.youtube.com/watch?v=e0mnN7ODD4U https://www.youtube.com/watch?v=xC7Ez5CGLOs Junk. It is pretty impressive for a camera lens with that zoom factor to get even remotely close to diffraction limited at the long end. There was a time when they struggled to do 3x zooms reliably not all that long ago. -- Regards, Martin Brown Molded aspherical lenses, ED glass, faster computers to optimize design. But, the 3000mm is an "equivalent," a vile photography definition meaning that the sensor is so small it behaves as a FF camera would would with something like a 3000mm lens. In reality the actual lens in front of the small sensor probably is 500-600mm. Still, impressive range for a zoom, but then remember video cameras had the same thing long before still cameras. |
#7
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On Thursday, September 6, 2018 at 4:08:38 PM UTC-7, RichA wrote:
On Thursday, 6 September 2018 03:37:49 UTC-4, Martin Brown wrote: On 06/09/2018 01:38, RichA wrote: On Wednesday, 5 September 2018 04:32:01 UTC-4, StarDust wrote: Huble in the hand? Let's find out! 125x zoom, 3000mm/f https://www.youtube.com/watch?v=e0mnN7ODD4U https://www.youtube.com/watch?v=xC7Ez5CGLOs Junk. It is pretty impressive for a camera lens with that zoom factor to get even remotely close to diffraction limited at the long end. There was a time when they struggled to do 3x zooms reliably not all that long ago. -- Regards, Martin Brown Molded aspherical lenses, ED glass, faster computers to optimize design. But, the 3000mm is an "equivalent," a vile photography definition meaning that the sensor is so small it behaves as a FF camera would would with something like a 3000mm lens. In reality the actual lens in front of the small sensor probably is 500-600mm. Still, impressive range for a zoom, but then remember video cameras had the same thing long before still cameras. I still have my Canon SX40 camera! 35x Wide-Angle (24-840mm) Optical Zoom Lens,Shutter: 15 - 1/3200 sec, Self Timer: 2 Sec, 10 Sec Capture stunning Full HD 1080p video in stereo sound Had lot of fun with it, took many good pictures of Sun and Moon eclipses free hand. Even the Sun spots! Also, wiled live in very close up! Now the P9000 is more difficult, size, weight and need a tripod to hold it! But, in the right hand, it can be another fun camera, I think? |
#8
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On Friday, 7 September 2018 00:39:43 UTC-4, StarDust wrote:
On Thursday, September 6, 2018 at 4:08:38 PM UTC-7, RichA wrote: On Thursday, 6 September 2018 03:37:49 UTC-4, Martin Brown wrote: On 06/09/2018 01:38, RichA wrote: On Wednesday, 5 September 2018 04:32:01 UTC-4, StarDust wrote: Huble in the hand? Let's find out! 125x zoom, 3000mm/f https://www.youtube.com/watch?v=e0mnN7ODD4U https://www.youtube.com/watch?v=xC7Ez5CGLOs Junk. It is pretty impressive for a camera lens with that zoom factor to get even remotely close to diffraction limited at the long end. There was a time when they struggled to do 3x zooms reliably not all that long ago. -- Regards, Martin Brown Molded aspherical lenses, ED glass, faster computers to optimize design.. But, the 3000mm is an "equivalent," a vile photography definition meaning that the sensor is so small it behaves as a FF camera would would with something like a 3000mm lens. In reality the actual lens in front of the small sensor probably is 500-600mm. Still, impressive range for a zoom, but then remember video cameras had the same thing long before still cameras. I still have my Canon SX40 camera! 35x Wide-Angle (24-840mm) Optical Zoom Lens,Shutter: 15 - 1/3200 sec, Self Timer: 2 Sec, 10 Sec Capture stunning Full HD 1080p video in stereo sound Had lot of fun with it, took many good pictures of Sun and Moon eclipses free hand. Even the Sun spots! Also, wiled live in very close up! Now the P9000 is more difficult, size, weight and need a tripod to hold it! But, in the right hand, it can be another fun camera, I think? Sure, to play with. |
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